01: /*
02: * Copyright 2006 Sun Microsystems, Inc. All Rights Reserved.
03: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
04: *
05: * This code is free software; you can redistribute it and/or modify it
06: * under the terms of the GNU General Public License version 2 only, as
07: * published by the Free Software Foundation. Sun designates this
08: * particular file as subject to the "Classpath" exception as provided
09: * by Sun in the LICENSE file that accompanied this code.
10: *
11: * This code is distributed in the hope that it will be useful, but WITHOUT
12: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14: * version 2 for more details (a copy is included in the LICENSE file that
15: * accompanied this code).
16: *
17: * You should have received a copy of the GNU General Public License version
18: * 2 along with this work; if not, write to the Free Software Foundation,
19: * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20: *
21: * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22: * CA 95054 USA or visit www.sun.com if you need additional information or
23: * have any questions.
24: */
25:
26: package com.sun.codemodel.internal;
27:
28: import java.util.Collections;
29: import java.util.Iterator;
30: import java.util.List;
31:
32: /**
33: * Special class object that represents the type of "null".
34: *
35: * <p>
36: * Use this class with care.
37: *
38: * @author
39: * Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)
40: */
41: public final class JNullType extends JClass {
42:
43: JNullType(JCodeModel _owner) {
44: super (_owner);
45: }
46:
47: public String name() {
48: return "null";
49: }
50:
51: public String fullName() {
52: return "null";
53: }
54:
55: public JPackage _package() {
56: return owner()._package("");
57: }
58:
59: public JClass _extends() {
60: return null;
61: }
62:
63: public Iterator<JClass> _implements () {
64: return Collections.<JClass> emptyList().iterator();
65: }
66:
67: public boolean isInterface() {
68: return false;
69: }
70:
71: public boolean isAbstract() {
72: return false;
73: }
74:
75: protected JClass substituteParams(JTypeVar[] variables,
76: List<JClass> bindings) {
77: return this;
78: }
79: }
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